Pascal's (1623-1664) digital counting machine (1642) showing, top, two of the train of number wheels which were viewed through windows in the casing o

---

Pascal's (1623-1664) digital counting machine (1642) showing, top, two of the train of number wheels which were viewed through windows in the casing of the machine. Engraving from Denis Diderot Encyclopedie, Paris, 1751-1780

---

Size: 4697px × 7442px
Photo credit: © Universal History Archive/UIG/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1623-1664, 1642, 1751-1780, adding, calculator, casing, counting, denis, diderot, digital, encyclopedie, engraving, french, machine, number, paris, pascal, top, train, viewed, wheels, windows